This is a beautifully made and very useful all-around zoom lens.  In 35 mm terms, it ranges from the wide angle 24 mm to the telephoto 80 mm, encompassing a wide array of everyday shooting.  This is the top-of-the-line PRO series made by Olympus and it doesn't get better than this.  As a "Four-Thirds" lens mount, it will fit most 4/3 camera bodies such as many made by Olympus and Panasonic.  I take very good care of my photo equipment and this lens is in great shape!